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Morel ST 728 Tweeter Black
Categories: 0.75 - 2" (19-50mm) Dome Tweeters Morel Tweeters
PRICED AS A MATCHED PAIR.
The Morel ST728 is a high-end 28mm soft dome tweeter from the Supreme range. An advanced design featuring many of Morels proprietary technologies engineered into a compact body of just 53mm (faceplate 72mm) - the diminutive dimensions in no way impact the sound quality which is on par with it's full size stable mates.
Features include an underhung Hexatech™ Aluminium voice coil, Neodymium flat pancake ring magnet, diecast alloy rear chamber & an IDR Aluminium faceplate. The dome assembly is hand coated with Acuflex damping compound and is field replaceable. Power handling is high at 120w.
As can be seen from the datasheet, the ST 728 has an incredibly smooth response; the critical 2kHz-10kHz band is held within 2.2 dB limits and the off axis response is excellent.
Available in Silver or Black, please select from the drop down menu above.
A full datasheet can be downloaded from the bottom of this page.
Resonant frequency (fs) | 800Hz | Nominal impedance (Zn) | 8 Ω |
Effective diaphragm diameter | 28mm | DC resistance (Re) | 5.2 Ω |
Ferrofluid ? Y/N | Yes | RMS power handling | 120W |
Recommended crossover | 2.5khz | Faceplate diameter | 72 mm |
Sensitivity (2.83V/1m) | 91 dB | Cutout hole diameter | 54 mm |
ST728
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Used in a DIY LS3/5a project, with Morel CAT 298 tweeters and custom crossovers using ClarityCap CSAs. Super pleased with these woofers! I think they synergize well with the “live” thin-wall LS3/5a cabinets. The sound is neither bloated, nor thin, just revealing, spacious, and with very lifelike tone. I’m so happy with the results of this project and had a great buying experience with Willy’s. Thank you!!
I used this in custom LS3/5a speaker enclosures along with Monacor SPH-135AD woofers and custom crossovers using ClarityCap CSAs. The tweeters have a very pure sound, revealing microdetails and having a naturally smooth, response. The sound is never peaky or rough. I’m very happy with my purchase and with the service from Willys. Would buy from again for a future project!
I bought a pair of Acoustic Research AR28LS speakers back in 1985 for £129 ! After about 15 years the foam suspension had started to perish and completely failed in 2006 following a rather loud teenage party. I was never happy with the Eminence Beta-8A replacements bought from a local shop at the time, as the bass resonance was far too high. Finally decided to replace them with Monacor SPH-8M and the speakers now sound as good as new. Arrived quickly and no problems fitting. Many thanks.
Absolutely first class service again brilliant advice as i always get from Will. Bought some Morel CAT 328-110 Tweeters and they sound sublime and the detail is incredible. Not harsh at all and very airy performs well beyond its price point im so glad Will advised me on this as the perfomance is fantastic. In fact Will has saved me thousands as replacing drivers has saved me investing in new speakers first class service once again.
Very happy customer thansk again.
Up and running again exactly what I needed. Great job Willys. 10/10👊🏻🫵🏻. From start to finish will be use again in near future for crossover upgrade. 1st time using. 100% will use again